SERVICE MANUAL
NOISE CANCELING HEADPHONES
US Model
Canadian Model
AEP Model
E Model
Tourist Model
SPECIFICATIONS
MDR-NC11
Ver 1.1 2004.02
9-873-539-02 Sony Corporation
2004B05-1 Personal Audio Company
C 2004.02 Published by Sony Engineering Corporation
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
General
Type dynamic, closed
Driver units 9 mm dia
Power handling capacity
50 mW
Impedance 20 ohms at 1 kHz
(when the power is on)
8 ohms at 1 kHz
(when the power is off)
Sensitivity 102 dB/mW (when the power is on)
98 dB/mW (when the power is off)
Frequency response
10 – 22,000 Hz
Frequency range of active noise attenuation
50 – 1,500 Hz more than 10 dB at
300 Hz
Power source DC 1.5 V, 1 × R03 (size AAA) battery
Mass Approx. 47 g (1.7 oz) including battery
box, cord, and battery
Supplied accessories
Earbuds (S × 2, M × 2, L × 2)
Holder (1)
Carrying case (1)
Plug adaptor for in-flight use (single/dual) (1)
Operating Instructions (1)
Design and specifications are subject to change without
notice.
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